Another plane on conveyor puzzle

[rhinochopig]

http://www.youtube.com/watch?v=W6cFsS8-mqI&eur...

Watch this /\ and answer this...

If you were to enclose the gyroscope in a vacuum, would it spin forever?

Cool toy though eh?

[hman]

My first pass at this:

Gravity acts across a vacuum, if you put a gyroscope in the vacuum on earth the gravity of earth will pull the gyroscope in the direction of gravity.


This means that it will the gyroscope will end up at the bottom of the vacuum chamber and friction will occur where its moving parts touch a stationary object therefore there will be friction, and it will slow down.

If you did this in space (with just the wheel part of the gyroscope no bearings or frcition points) it will spin forever (I think) but you'd have to be careful that when you spun it up it was held very steady as any momentum in one direction would cause it to continue in that direction forever (or as long as it stayed away from planets gravitational pull or black holes).

The plane on the conveyor thing was for idiots, the wheels turning around are castoring so they dont give the plane any forward motion/airflow so no lift.

[rhinochopig]

hman said:

My first pass at this:

Gravity acts across a vacuum, if you put a gyroscope in the vacuum on earth the gravity of earth will pull the gyroscope in the direction of gravity.


This means that it will the gyroscope will end up at the bottom of the vacuum chamber and friction will occur where its moving parts touch a stationary object therefore there will be friction, and it will slow down.

If you did this in space (with just the wheel part of the gyroscope no bearings or frcition points) it will spin forever (I think) but you'd have to be careful that when you spun it up it was held very steady as any momentum in one direction would cause it to continue in that direction forever (or as long as it stayed away from planets gravitational pull or black holes).

The plane on the conveyor thing was for idiots, the wheels turning around are castoring so they dont give the plane any forward motion/airflow so no lift.

But the magnets counteracts the gravitational pull.

Edited by rhinochopig on Thursday 23 April 08:26

[hugo a gogo]

rhinochopig said:

http://www.youtube.com/watch?v=W6cFsS8-mqI&eur...

Watch this /\ and answer this...

If you were to enclose the gyroscope in a vacuum, would it spin forever?

Cool toy though eh?

yes, it would keep spinning

hman said:

The plane on the conveyor thing was for idiots, the wheels turning around are castoring so they dont give the plane any forward motion/airflow so no lift.

oh dear

[hman]

what magnets?

a gyroscope can be a very simple spinning wheel, you didnt mention specifically which type of gyroscope you are talking about.

I used to have a gyroscope which you wound a length of cord around the spinning wheel shaft and then pulled (quickly) to get it spinning, you could then set it up at ridiculous angles and it would maintain them,

[rhinochopig]

hman said:

what magnets?

a gyroscope can be a very simple spinning wheel, you didnt mention specifically which type of gyroscope you are talking about.

I used to have a gyroscope which you wound a length of cord around the spinning wheel shaft and then pulled (quickly) to get it spinning, you could then set it up at ridiculous angles and it would maintain them,

Read the post again. Watch the video and then answer the question.

[Justayellowbadge]

hugo a gogo said:

hman said:

The plane on the conveyor thing was for idiots, the wheels turning around are castoring so they dont give the plane any forward motion/airflow so no lift.

Either:

1) Be taking the piss.

2) Don't breed. Ever.

Your choice.

[hugo a gogo]

you don't have to edit that, I'll go along with it

[hman]

rhinochopig said:

hman said:

what magnets?

a gyroscope can be a very simple spinning wheel, you didnt mention specifically which type of gyroscope you are talking about.

I used to have a gyroscope which you wound a length of cord around the spinning wheel shaft and then pulled (quickly) to get it spinning, you could then set it up at ridiculous angles and it would maintain them,

Read the post again. Watch the video and then answer the question.

seriously, I dont have time, but I'm sure someone else will do and give you the answers that you are looking for.

[hman]

hugo a gogo said:

you don't have to edit that, I'll go along with it

So tell me hugo a whatsis name, what do you think happens when you put a plane on a conveyor?

Apart from the wheels spinning round and round.


I refer you to a real life test of the conveyor vs plane theory.

http://mythbustersresults.com/episode97

Edited by hman on Thursday 23 April 08:56

[rhinochopig]

hman said:

rhinochopig said:

hman said:

what magnets?

a gyroscope can be a very simple spinning wheel, you didnt mention specifically which type of gyroscope you are talking about.

I used to have a gyroscope which you wound a length of cord around the spinning wheel shaft and then pulled (quickly) to get it spinning, you could then set it up at ridiculous angles and it would maintain them,

Read the post again. Watch the video and then answer the question.

seriously, I dont have time, but I'm sure someone else will do and give you the answers that you are looking for.

Why answer the thread in the first place then?

[hman]

rhinochopig said:

hman said:

rhinochopig said:

hman said:

what magnets?

a gyroscope can be a very simple spinning wheel, you didnt mention specifically which type of gyroscope you are talking about.

I used to have a gyroscope which you wound a length of cord around the spinning wheel shaft and then pulled (quickly) to get it spinning, you could then set it up at ridiculous angles and it would maintain them,

Read the post again. Watch the video and then answer the question.

seriously, I dont have time, but I'm sure someone else will do and give you the answers that you are looking for.

Why answer the thread in the first place then?

why not, theres nothing that says you need to read anything in a thread on pistonheads before answering, you waste my time, I'll waste yours...

[AJI]

If there are any frictional resistance contact within the system then it will come to a stop.

If there are no resistance factors, such as bearings, air etc. then there is no opposing force to the movement and therefore nothing to slow it down or stop it.

[hugo a gogo]

hman said:

hugo a gogo said:

you don't have to edit that, I'll go along with it

So tell me hugo a whatsis name, what do you think happens when you put a plane on a conveyor?

Apart from the wheels spinning round and round.


I refer you to a real life test of the conveyor vs plane theory.

http://mythbustersresults.com/episode97

have you even looked at your own link?

"First some small-scale tests were performed with a model airplane on a treadmill and the plane was able to take off. For the large-scale test, the MythBusters used a 400 pound ultralight aircraft with a 2000 foot tarp under it. The tarp was pulled backwards to simulate a moving runway. The ultralight pilot had no trouble taking off. This is because the thrust of the airplane engines acts on the air, not on the ground."




edit: Occupation: Engineer (life safety systems)

oh bloody hell

Edited by hugo a gogo on Thursday 23 April 09:00

[hman]

hugo a gogo said:

hman said:

hugo a gogo said:

you don't have to edit that, I'll go along with it

So tell me hugo a whatsis name, what do you think happens when you put a plane on a conveyor?

Apart from the wheels spinning round and round.


I refer you to a real life test of the conveyor vs plane theory.

http://mythbustersresults.com/episode97

have you even looked at your own link?

"First some small-scale tests were performed with a model airplane on a treadmill and the plane was able to take off. For the large-scale test, the MythBusters used a 400 pound ultralight aircraft with a 2000 foot tarp under it. The tarp was pulled backwards to simulate a moving runway. The ultralight pilot had no trouble taking off. This is because the thrust of the airplane engines acts on the air, not on the ground."

Have you even understood what i've been saying from the start?


THE CONVEYOR HAS NO EFFECT ON THE PLANE (apart from making the wheels spin round quicker than usual)


At no point have I said that I dont think tee plane would take off, I know it will, the point i made about the wheels is that they do not affect the amount of lift given by the wings




You fking tit.

Edited by hman on Thursday 23 April 09:03

[Parsnip]

No, it wouldn't spin forever.

It is essentially spinning on a magnetic bearing, which isn't frictionless - its close, but it isn't.

It would be possible to make it spin forever depending on how it is designed, but you would be putting energy in - using an electromagnet in the base to power the spinning top, same way a motor works.

In theory, you could get it to float forever if you balanced it perfectly on the magnetic field. In practice, this is impossible, hence whey the top hits the deck after it stops spinning.

[Justayellowbadge]

Hman, your point is taken.

However, read back your OP - it was appallingly phrased and did not clearly give that impression.

[hman]

Justayellowbadge said:

Hman, your point is taken.

However, read back your OP - it was appallingly phrased and did not clearly give that impression.

looks that way doesn't it, I will try to get more sleep before putting digits to keyboard

[hugo a gogo]

hman said:

At no point have I said that I dont think tee plane would take off, I know it will, the point i made about the wheels is that they do not affect the amount of lift given by the wings




You fking tit.

Edited by hman on Thursday 23 April 09:03

so when you said "the wheels turning around are castoring so they dont give the plane any forward motion/airflow so no lift" you meant the plane does have lift?

you need to work on your clarity, mate, that clearly reads to me "no forward motion - no lift"

[hman]

hugo a gogo said:

hman said:

hugo a gogo said:

you don't have to edit that, I'll go along with it

So tell me hugo a whatsis name, what do you think happens when you put a plane on a conveyor?

Apart from the wheels spinning round and round.


I refer you to a real life test of the conveyor vs plane theory.

http://mythbustersresults.com/episode97

have you even looked at your own link?

"First some small-scale tests were performed with a model airplane on a treadmill and the plane was able to take off. For the large-scale test, the MythBusters used a 400 pound ultralight aircraft with a 2000 foot tarp under it. The tarp was pulled backwards to simulate a moving runway. The ultralight pilot had no trouble taking off. This is because the thrust of the airplane engines acts on the air, not on the ground."




edit: Occupation: Engineer (life safety systems)

oh bloody hell

Edited by hugo a gogo on Thursday 23 April 09:00

dont be such a tt, according to your profile you're from germany so using the same faulty logic as you to determine the IQ of someone by not reading their post correctly then attempting to berate them on an internet forum ( retarded) you are a Nazi.

Edited by hman on Thursday 23 April 09:10